Garmin GTN 635 User Manual - Page 12

Browse online or download pdf User Manual for Avionics Display Garmin GTN 635. Garmin GTN 635 22 pages. Gps/sbas navigation system as installed in cessna 172r
Also for Garmin GTN 635: Activation Instructions (46 pages), User Manual (20 pages), Manual Supplement (31 pages), Errata (4 pages), Flight Manual (49 pages), Pilot's Manual (28 pages)

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Garmin GTN 635 User Manual

Section 3. EMERGENCY / MALFUNCTION PROCEDURES

3.1

HTAWS

3.1.1 HTAWS WARNING
Red annunciator and aural "TERRAIN" or "OBSTACLE":
Aircraft Controls ......................................... INITIATE ESCAPE MANUEVER
3.1.2 HTAWS CAUTION
Yellow annunciator and aural "TERRAIN" or "OBSTACLE":
3.1.3 HTAWS N/A and HTAWS FAIL
If the amber external HTAWS N/A status annunciator is displayed, the system
will no longer provide HTAWS alerting or display relative terrain and obstacle
elevations. The crew must operate the aircraft in a manner to ensure minimum
safe terrain and obstacle separation.
3.2

COM RADIO

3.2.1 LOSS OF COM RADIO TUNING FUNCTIONS
If alternate COM is available:
Communications ........................................................ USE ALTERNATE COM
If no alternate COM is available:
GTN VOLUME KNOB ....................... PRESS AND HOLD FOR 2 SECONDS
COM Remote Transfer Button ............ PRESS AND HOLD FOR 2 SECONDS
This procedure will tune the active COM radio to the
emergency frequency, 121.5, regardless of what frequency is
displayed on the GTN. Certain failures of the tuning system
will automatically tune 121.5 without flight crew action.
190-01007-J4 Rev. 1
Page 12 of 22
VERIFY THE AIRCRAFT FLIGHT PATH
AND CORRECT, IF REQUIRED.
OR
NOTE
RFMS, Bell 407 GTN GPS/SBAS System
FAA APPROVED